The official first day of summer happened last weekend! It is now excusable for the sun to melt you into the sidewalk.
As is tradition around this time of year, our air conditioner broke. We sort of weren't using it that much anyway to try and keep our energy bill on the lower end of ridiculous (old houses = lots of character, lots of character = no insulation, no insulation = lots of energy needed to keep the indoors from becoming devil's armpit hot), but as it turns out, not using air conditioning means that our house turns into a high-desert microclimate with temps averaging about 86˚F.

So now we are looking for every excuse to cook and eat our food outside, which led to the creation of these [likely inauthentic, but still super tasty] chicken tacos. Granted you can (and I did) cook the chicken breasts in a skillet, but they'd be just as good and probably more authentic if they were cooked outdoors on a grill. You can easily double/quadruple/quintuple this recipe to feed as many hungry people as you'd like, and as the only thing that really needs cooking is the chicken, you can prep all the accoutrements right before you grill and have quite possibly the easiest and least fussy dinner party ever.

So, yeah. These are really good tacos, made by a white lady in a cast-iron skillet in Utah. I doubt it gets much more gringo than that.

Place the chicken in a container with a lid or a shallow bowl. In a small bowl, combine the remaining ingredients and pour over the chicken. Use your hands to spread the marinade over the chicken so that each breast is evenly coated. Cover and place in the fridge for at least 2 hours or up to overnight.

About 30-45 minutes before you want to eat your tacos: Take the chicken out of the fridge and set aside (leaving it at room temperature for a bit helps it to cook more evenly and stay tender). If using a grill, now is a good time to begin heating your coals.

About 15 minutes before you want to eat your tacos: prep the avocado, onion, cilantro, and lime (we combined the onion and cilantro in the same bowl like a dry relish, but you can serve them separately depending on what you prefer). Set aside.

Place a grill over hot coals, or place a cast-iron skillet over medium high heat. Oil the grill with an olive oil-soaked paper towel, or drizzle a little oil around the inside of your cast iron skillet (just enough to lightly coat). Cook the chicken just until it is cooked through (no longer pink inside), but still tender, about 5-6 minutes on each side.

While the chicken is cooking, remove your tortillas from their bag/container and place them in a microwave-proof bowl. Put a plate on top of the bowl (covering the tortillas) to make a makeshift steamer. Microwave your bowl/plate contraption for 1-2 minutes to heat your tortillas and make them pliable (you may have to experiment with your tortillas to make sure you are heating them enough/not too much, since various brands can act differently when heated).

Once the chicken is cooked, remove the pan from the heat and place the chicken breasts on a cutting board. Let rest for a minute. Slice each breast across the grain into 1/4-inch thick slices and place in a serving bowl. Pour any juices that end up on your cutting board over the chicken. Serve immediately with the hot tortillas, onion, cilantro, avocado, and lime.